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Thermal Decomposition of Ammonium Polyphosphate-Polyurethane Composite Foam Brown by H2O
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  • Journal title : Elastomers and Composites
  • Volume 50, Issue 4,  2015, pp.297-303
  • Publisher : The Rubber Society of Korea
  • DOI : 10.7473/EC.2015.50.4.297
 Title & Authors
Thermal Decomposition of Ammonium Polyphosphate-Polyurethane Composite Foam Brown by H2O
Park, Kyeong-Kyu; Lee, Sang-Ho;
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Ammonium polyphosphate-polyurethane foam composite (APP-PUF) was prepared from poly(adipate)diol/ammonium polyphosphate composite (f = 2), polyether polyol (f = 4.6), and PMDI (f = 2.5). As a blowing agent, was used at various concentrations. The thermal decomposition behavior, morphology, closed-cell content, and density of APP-PUF were characterized. At the concentrations lower than 3.5 php, the cell size of pure polyurethane foams (PUF) and APP-PUFs were close each other. As the concentration became greater than 5.0 php, the cell size of the PUFs greatly increased compared to that of APP-PUFs. Addition of 1.5~1.9 wt% ammonium polyphosphate to the PUFs greatly enhanced the thermal stability of the PUFs, so 50 wt% residual temperature of APP-PUFs increased to , which were higher than those of the PUFs. Thermal stability of the PUFs and APP-PUFs increased with content and then decreased once content exceeded 5 php.
polyurethane foam composite;ammonium polyphosphate;TGA;thermal decomposition;
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